869528 has 32 divisors (see below), whose sum is σ = 1829520. Its totient is φ = 384000.

The previous prime is 869521. The next prime is 869543. The reversal of 869528 is 825968.

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 869491 and 869500.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 869528.

It is not an unprimeable number, because it can be changed into a prime (869521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3488 + ... + 3728.

2⁸⁶⁹⁵²⁸ is an apocalyptic number.

869528 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 869528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (914760).

869528 is an abundant number, since it is smaller than the sum of its proper divisors (959992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

869528 is a wasteful number, since it uses less digits than its factorization.

869528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299 (or 295 counting only the distinct ones).

The product of its digits is 34560, while the sum is 38.

The square root of 869528 is about 932.4848524239. The cubic root of 869528 is about 95.4467599779.

The spelling of 869528 in words is "eight hundred sixty-nine thousand, five hundred twenty-eight".